If you are using Apache with mod_http2:
CVE-2026-119618 - Apache HTTP Server: mod_http2: heap corruption and RCE in assign_headers
Concurrent Execution using Shared Resource with Improper Synchronization vulnerability in Apache HTTP Server's mod_http2 in assign_headers() can lead to RCE. This issue affects Apache HTTP Server: from 2.4.55 through 2.4.70. Affected releases of mod_h2 from GitHub: from 2.0.8 through 2.0.42.
Hopefully Apache will release 2.4.71 soon.